Construction of international important wetland White-headed crane ecological corridor in Chongming Dongtan, China

Ecological Indicators, Journal Year: 2023, Volume and Issue: 149, P. 110156 - 110156

Published: March 21, 2023

At the Yangtze River estuary, Chongming Dongtan International Important Wetland is a typical estuary wetland. It an essential habitat for international migratory birds. The of birds in this area changes rapidly. ecological corridor important means to maintain stability watershed ecosystem and enhance sustainability watershed. has significant demonstration implications preservation biodiversity restoration functions wetlands with value. In study, rare white-headed crane distributed was taken as research object, land use change recent ten years obtained by ENVI ArcGIS10.8 software. sources population were screened using morphological spatial pattern analysis (MSPA) landscape connectivity. Using GIS technology construct comprehensive resistance surface, combined circuit theory, processes heterogeneous landscapes are simulated calculating ' or current identify corridors, pinch points, obstacles. results showed that region included 24 sources, 46 127 134 Ecological obstacle points. study trend fragmentation. high-resistance areas mainly low-altitude rapid urbanization frequent human activities, such Qiyao Town Yuxi Village. corridors White-headed cranes bare flat, reed beaches, grassland, paddy fields. optimal threshold MSPA 500 m. same time, function optimized divided into different levels, core area, buffer zone, crisscross production living area. This constructs from regional wetland scale, which helpful optimize suitable pattern, provide method basis protection network construction habitat.

Language: Английский

Research on ecological network construction and identification of important elements based on morphological spatial pattern analysis and circuit theory in Pingxiang City

Journal for Nature Conservation, Journal Year: 2025, Volume and Issue: unknown, P. 126902 - 126902

Published: March 1, 2025

Language: Английский